As has been said, +1 helper. Undo the hinges where hey attach to van as opposed to tailgate, a lot easier.
Open tailgate, crack off the four set screws ( countersunk head thingies with hex fitting) attaching hinge to van.
Disconnect rubber trunking and remove/slide out any electrics to tailgate.
Take one from each hinge out completely.
Get you brave/strong/willing helper to take weight of tailgate whilst you take the tailgate struts off (small screwdriver to slide the retaining clip in place, careful it doesn't fly off)
With one hand help to hold tailgate up whilst taking remaining two screws out.
Works for me anyway
